| AHPO | anterior hypothalamic preoptic [area] |
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| AIIS | anterior inferior iliac spine |
| AIN | acute interstitial nephritis; American Institute of Nutrition; anterior interosseous nerve |
| AION | anterior ischemic optic neuropathy |
| AIS | Abbreviated Injury Scale; amniotic infection syndrome; androgen insensitivity syndrome; anterior int... |
| intermediate part of adenohypophysis | The part of the adenohypophysis located between the pars distalis and the nervous lobe; poorly developed in humans. Synonym: pars intermedia adenohypophyseos. (05 Mar 2000) |
|---|---|
| intermediate part of vestibular bulb | A narrow median band that connects the two masses of erectile tissue (the bulbus vestibuli) on either side of the vaginal orifice. Synonym: pars intermedia commissura bulborum, commissura bulborum, intermediate part of vestibular bulb, pars intermedia bulborum. (05 Mar 2000) |
| intermembranous part of glottic opening | The portion of the opening anterior to the vocal processes of the arytenoid cartilages bounded by the vocal ligaments. Synonym: pars intermembranacea rimae glottidis, glottis vocalis, intermembranous part of glottic opening. (05 Mar 2000) |
| intermembranous part of rima glottidis | The portion of the opening anterior to the vocal processes of the arytenoid cartilages bounded by the vocal ligaments. Synonym: pars intermembranacea rimae glottidis, glottis vocalis, intermembranous part of glottic opening. (05 Mar 2000) |
| intersegmental part of pulmonary vein | A vein receiving blood from adjacent bronchopulmonary segments; it emerges from the inferior margin of a segment to become a tributary of a branch of a pulmonary vein. Synonym: infrasegmental part, intersegmental part of pulmonary vein, pars infrasegmentalis. (05 Mar 2000) |
| intracanicular part of optic nerve | <anatomy, nerve> The part of the optic nerve lying within the optic canal. Synonym: pars intracanaliculus nervi optici. (05 Mar 2000) |
| intracranial part of optic nerve | <anatomy, nerve> The portion of the optic nerve between the optic canal and the optic chiasm. Synonym: pars intracranialis nervi optici. (05 Mar 2000) |
| intracranial part of vertebral artery | See: vertebral artery. (05 Mar 2000) |
| intralaminar part of optic nerve | <anatomy, nerve> The portion of the optic nerve as it passes through the lamina cribrosa of the sclera. Synonym: pars intralaminaris nervi optici. (05 Mar 2000) |
| intralobar part of the right superior pulmonary vein | <anatomy, vein> The vein draining the apical and posterior segments of the right lung; tributary to the posterior branch of the right superior pulmonary vein. Synonym: pars intralobaris venae pulmonalis dextrae superioris. (05 Mar 2000) |
| intraocular part of optic nerve | <anatomy, nerve> The part of the optic nerve within the eye; it is divided into intralaminar, postlaminar, and prelaminar parts. Synonym: pars intraocularis nervi optici. (05 Mar 2000) |
| intrasegmental part | A vein emerging from the bronchopulmonary segment it drains; a tributary to a branch of a pulmonary vein. Synonym: pars intrasegmentalis, intrasegmental part. (05 Mar 2000) |
| iridial part of retina | iridial part of retina |
| oblique part of cricothyroid muscle | <anatomy> See: cricothyroid muscle. Synonym: pars obliqua musculi cricothyroidei. (05 Mar 2000) |
| occipital part of corpus callosum | Occipital radiation of the corpus callosum; that part of the fibre radiation of the corpus callosum which bends sharply backward into the occipital lobe of the cerebrum. Synonym: forceps major, forceps posterior, occipital part of corpus callosum, pars occipitalis corporis callosi. (05 Mar 2000) |